Maintenance And Care; Troubleshooting And Error Codes - Napa 90-150 Owner's Manual

at 180 and counts down to 0. After 3
minutes, the digital display will change
from displaying the countdown to
displaying rdy. After 2 hours of Engine
Starting, the unit will automatically exit
from the charging mode, just as if the
STOP button had been pressed; the
Boosting/Charging LED will not be lit.
POWER-UP AUTO-START
This charger is equipped with an auto-
start feature, which is triggered only when
the charger is first powered up. If the
START button is not pressed within 30

12. MAINTENANCE AND CARE

A minimal amount of care can keep your
battery charger working properly for years.
• Clean the clamps each time you are
finished charging. Wipe off any battery
fluid that may have come in contact with
the clamps to prevent corrosion.
• Occasionally cleaning the case of the
charger with a soft cloth will keep the
finish shiny and help prevent corrosion.

13. TROUBLESHOOTING AND ERROR CODES

Error Codes
CODE
The battery voltage is still under
10V (for a 12V battery) or 5V
F01
(for a 6V battery) after 2 hours
of charging.
The charger has detected a
SUL
sulfated battery.
The charger cannot desulfate
F02
the battery.
The battery was unable to reach
the "full charge" voltage.
F03
The connections to the battery
F04
are reversed.
The charger was unable to
keep the battery fully charged in
F05
maintain mode.
The charger detected that the
F06
battery may be getting too hot
(thermal runaway).
DESCRIPTION
seconds, the unit will search for a battery.
If the unit detects a battery that is properly
connected, the unit will set the rate to
40A Boost, battery type will be set to
AGM, it will automatically start the charge
process, and the
(yellow/orange) LED will light
FAN OPERATION
The fan will operate as needed and it is
normal for the fan to sometimes operate
continuously. Keep the area near the
charger clear of obstructions to allow the
fan to operate efficiently.
• Coil the input and output cords neatly
when storing the charger. This will help
prevent accidental damage to the cords
and charger.
• Store the charger unplugged from the AC
power outlet in an upright position.
• Store inside, in a cool, dry place. Do not
store the clamps on the handle, clipped
together, on or around metal, or clipped
to the cables.
REASON/SOLUTION
The battery could be bad. Have it checked or
replaced.
The charger will go into desulfation mode. If the
desulfation is not successful after 10 hours, the
charger will go into abort mode.
The battery could not be desulfated; have it
checked or replaced.
May be caused by trying to charge a large battery
or bank of batteries on too low of a current setting.
Try again with a higher current setting or have the
battery checked or replaced.
The battery is connected backwards. Unplug
the charger and reverse the connections to the
battery.
The battery won't hold a charge. May be caused
by a drain on the battery or the battery could be
bad. Make sure there are no loads on the battery.
If there are remove them. If there are none, have
the battery checked or replaced.
The charger automatically shuts the current off
if it detects the battery may be getting too hot.
Have the battery checked or replaced.
• 10 •
Boosting/Charging